Gaya APA
Royce Singleton, Jr. (1988).
Approaches to social research .
New York:
Oxford University Press.
Gaya Chicago
Royce Singleton, Jr.
Approaches to social research.
New York:
Oxford University Press,
1988.
Text.
Gaya MLA
Royce Singleton, Jr.
Approaches to social research.
New York:
Oxford University Press,
1988.
Text.
Gaya Turabian
Royce Singleton, Jr.
Approaches to social research.
New York:
Oxford University Press,
1988.
Print.